Sigmund Riefler Signed Regulators and Rare Clocks in Upcoming Schmitt Horan & Co. Event

Sigmund Riefler (1847 – 1912) was a renowned German inventor and precision clockmaker. Riefler’s late 19th-century regulators accelerated the accuracy of pendulum clocks. His all-mechanical pendulum clocks were being used as benchmarks in astronomical and naval observatories, alongside meridian telescopes. An early 20th-century type D observatory tank regulator from Sigmund Riefler is currently up for bid in the upcoming Schmitt Horan & Co auction. The regulator has a silvered astronomical dial with blued steel hands. The device is held within a copper cylinder covered with a transparent bell jar and suspended by a heavy cast iron bracket. The clock was originally housed at the Royal Observatory, Cape of Good Hope (now Cape Town), South Africa. 

Several early 20th-century regulators are on offer, including a bow front astronomical regulator by Zenith, a Riefler type B astronomical regulator, and a very rare precision tank regulator by Peyer & Favarger. Beyond these lots, the sale will also feature vintage hanging clocks, a William Cummens Roxbury Banjo Clock, a mid-20th century United Mfg. Co. coin-operated Sparky bowling arcade game, as well as watches from Rolex and Longines. Interested collectors can view the entire catalog, register to bid online on Bidsquare, and browse other online auctions.